Vulcanizing apparatus



24, 1931. 0, FREDD 1,793,472

VULCANI Z ING APPARATUS Filed 0st. 17, 1927 7ZU67iZ 0 f: Oscar/ 1 171962225 Patented Feb. 24, 1931 2 UNITED 's'T oscAR M. FREDD, or nnnoocgmronrqnn vv nioluvizine memes [Application s eeoctobei 17,, 1927; fseriallfio. 226,566.

This invention pertains to vulcanizingapparatus, and more particularly to a form device for heating andreinforcing tires or the llike during vulcani zing processes.

6} ,In yulcanizing or thelike processes, it is highly desirable to use a. reinforcing means in the device to be vulcanized,"such as .a tire, which means may be capableof locally heating the part operated on. It is veryneces esses, such as vulcanizing.

1 A further object is to provide a form device for tires undergoing, repair operation whereby heat may be applied tosaid' tires without applying said heat directly to' the tire engaging part of the form.

Still furtherobject is toprovide a device for reinforcing tires or the like undergoing repair or sectionalizing operations, which has replaceable parts and one which fulfills" all requirements of manufacture and service':

IWith these 'and various other *objects-'in view, the inventlon cons sts of certaln novel features of'construction and operatlon as Wlll.

be more any described and particularly as Lint ed out in'the' specification, drawingsand :clainis appendedhereto.

I c1 '61 'nv;="h' unfit-"teen" V i n e mwl W 1 m e tion mayfbe employed; though iffthe device 7 b diment of the device and wherein like'r'eference characters are used to designate l ke Figure 1 is an elevation of theheating unit and cap assembly;

; zof oneform of former; and'f v I Figure 3isasect10nal elevation of a former, showing a slightly different mo'dificationi thanthat illustrated in Eigure'2. j V

"Thefformer consists essentially of three the connections will be -made accordingly. A Y plug 22 maybe providedin the face of the s "end of the heating unit for the-purpose of "[Figure'2fis a side elevatiori of the case the" heating unit 10,- Whichfmay be of i 2 metal or any semi-rigid materiahconsists essentlally of an elongated heating chamber 1:3 cu rve d in theidirection' of its length to cor.-

respondsubstantially tof'the arc of curvature of the object, such as a tire, to be operated upon. The heating chamber isclosed at its ends-14c and 16,-one end'16 being provided 7 Withenlarged shoulder or supporting means '15jthe end 16 adjacent saidshoulders being substantially flat and having-spaced lugs 17, thereon. fitting 18 is tapped into the flat portion of end 16 for the purpose of attaching a hose connection l9*w hic h may have. communication with a steam-source; l Another-fits 66 'ting'20having an elongated tubular portion" v extending inlthe direction of the length of the heating chamber maybe provided havinga draw-off or bleeder connection :21 attached thereto for the 'purpiosefof bleeding off any" condensate in case steam isused as a heating medium, though at this point it"may be well "to note that any formof heating medium-may be used, such as electricity, etc, in which case rendering the inside of said unit accessible,

the threaded face of theunit also providing a'conven'ient securing means for the heating{ umt whlle the 'device'is: beingassembled, the

plug then serving merely as a closure after the assembly hasbeen efiected.

Thecap 11 is provided with am a of substantially-the same diameter as the 5' shoulders 15, and ,while' it is seenthat a section through the device is circular, any other secis adapted for the use of present day tires, a

circular section: of the: device is preferred-zgo The face 2450f thecapll is likewise pro; 1 vided with lugs 25 similar to lugs 17 and may v V I be provided with a plain tapped plug 26,for closing the} opening 27-provided in said cap 'for the purpse ofproviding a support to; c

facilitate the' a's sembling thereof. e

In the modification of the cap illustrated in Figure" 1 'there' is provided a pneumatic pressureifittingj28 adapted to permit the'introductionof and/ or imaintai'n the pressure i in the former assembly. A fitting'29 may also be provided in the face of this cap at any convenient place for the reception of a thermometer 30 used in ascertaining the temperature in said former.

In the modification shown in Figure 2, in-

' stead of providing the face of the cap with J fittings forthereception of a thermometer and the pneumatic hose, the plug 126 is pro- .vided'with a fitting 129 for thereceptionof a thermometer 130, this cap being also provided with a fitting 128 for the reception of the pneumatic hose. l

In the modification shown in Figure 3, the face of the fitting is provided as at 28 with pneumatic fitting, but the plug 226 is provided at 229 with the fitting for the reception of the thermometer. V

In all cases, it has been found convenient to provide securing means, such as hooks '31, disposed on the inside oftheannular shoulder of thecap, said hooks being adapted to have connection with flexible adjustable connecting means such as links 32 disposed between said hooks and the securing fitting. 83 provided on a portion ofthe heating unit. The core 12 adapted to be disposed between the shoulders 15 and 23, is preferably reinforced at 34 and 35 in way of the shoulders and securing means 36 which may be in the form of twistedwires. Ithas been found convenient andhighly' desirable to anchor the endsof these-wires 36 to the lugs 17- and 25 so that no sharp edges may be permitted to come in contact with the tire or with the core. 7 v

w Inassembling this device, as already indicated it may be desirable to secure the heating unit and'the cap to-any positioning means, such as threaded pipe members disposed in the plug apertures formed in said heating unit and the cap, whereupon the core 12 may be slipped into place andfbound with the securing means 36, lugs 17 and '25 then serving both as'an'anchoring-me'ans and as awedging means for disengaging their respective members from the supporting means.

In operation'then where it is desired-simply to reinforce the'part of, for example, a tire to be vulcanized or. sectionalized,rthe device is placed. in the proper place on-the tire and fluid is introduced through the fitting 28, servingas a reinforcing meansjforfthe prefer- 1 ablyflexible casing 12. V If then it is necessary to heat apart of the-tire, steam or anyjother 1 heating 7 medium' may be introduced as through the fitting 18, any condensate being I drawn off through the fitting 20 in the bleeder 21. It will of course be appreciatedthat the 2 if parts of the device may be readily replaced as to produce. any length of reinforcing or. renewed as well as capable of assembly so members; g g I It'is'further tobe understoodthat I- do not; wish to be limited by theexact' embodiments of the device illustrated, which arebywayiof.

' of said closures,

,adjustably securedflthereto, shoulders disposed on said unit and plug, a pressure core secured to saidshoulders, said shoulders disposingsaid core in spaced relation to a portion of saidunitu 3. In a device of the character described,

the combination ofa pressure core,separate securing means for closing each end of said core, one of said meanshaving pressure supply vmeans communicating withsaid core and'the other of said securingmeans having temperature controlling means .for the device;

4. In a device of the character described, the combination ofv a temperature control- .90 lingunit, a plug. having pressure controlling I v means disposed therein adjustably secured to said unit, shouldersdisposed on said unit and plug, a pressure coreise cured to said shoulders,'said-shoulders disposing said core in, spaced relation to apor'tionof said unit. o

5. In a device of the character described, the combination of a temperature controlling unit, a plug having. pressure controlling means disposed-therein: adjustably secured to i said unit, shoulders disposed on said unit and plug, a pressure core secured to said shoulders, said shoulders disposing said core in spaced relation to a portion of said unit, said unit and core being shaped tocorrespond- -to the material to be operated upon and wit which the device cooperates, V v 6. In a device of the character'described,

the combination of form -shaped heating chamber having enlarged supporting meansthereon, a cap separate from said chamber andhaving supporting means of substantially the same size as saidother supporting means and 1 spaced therefrom, a form shaped core having reinforced sections supported and: -,;1 secured on said supporting means, and heating,draining and pressure means cooperating with'saiddevice. 7, In-a vulcanizing device, the combination of a pair of receptacles, each having aggo closure, one" of said receptacles forming a closure for the other and being spaced from the closure of said other receptacle, and

means wherebydiiferent fluids may be introduced to each of said receptacles one of said receptacles being adjustablyconnected to one 8. In a vulcaniaing device, the. combina: tion ofa 'fiexibleinfiatable casing, members for closing said casing, one of said membersnrlw having means therein for introducing the in- V flating medium thereto, and means forming a part of the other of said members and spaced from said casing and spaced from and connected by adjustable means to the first named member for thermallyfaflecting the inflating medium in said casing.

9. In a device for eflecting thermal I changes, the combination of a flexible tubular member having a closure, a tubular member extending intosaid first named tubular member and having a portion'forming a closure for said first named tubular member,

and being spaced from the closure of said first named tubular member, means for adjustably connecting said second named mem- 3 ber to sald first named closure, means for 1ntroducing fluid to said first named tubular member,and means for introducing fluid of a different temperature to said second named tubular member whereby the temperature of the first named fluid is changed.

10. In 'a device for eflecting thermal changes, the combinationof a flexible tubular member having a closure, a member having a portion forming a closure for said tubular member and being spaced from the closure of said first named tubular member, said second named member having a portion ex-' tendingan appreciable distance within said tubular member and providedwith means whereby thermal changesmay be effected within said tubular member, said second named member being supportablytconnected by adjustable means to said first'named closure.

11. In a device for efl'ecting thermal changes, the combination of a casing,.means for introducing pressure thereto, and means extending into said casing and having a portion independent of said casing and terminating therein whereby thermal changes within said casing may be efiected by said portion and adjustable means connecting said casing and means.

Signed at Hancock, Michigan, this 11th day of October, 1927. V

7 OSCAR M. FREDD. 

